// --- ÉèÖÃcookie
function setCookie(name,value,days) {
if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
}
else expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}
//--- »ñÈ¡cookie
function getCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}
//---
function set_background(v)
{
	setCookie("51css_flag",v,365);
}
document.write("<LINK href=\"/skin/css"+(getCookie("51css_flag")==null?"":getCookie("css_flag"))+"/css.css\" rel=\"stylesheet\" type=\"text/css\">");